*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.nav{
    height: 100px;
    margin: 0 auto;
    width: 1000px;
    overflow: hidden;
    list-style:none;
}

.nav>li{
    width: 20%;
    height: 100px;
    line-height: 100px;
    font-size: 18px;
    text-align: center;
    float: left;
    border: 1px solid;
}

.nav>li.ok{
    background-color: green;
    color: white;
    cursor:pointer;
}

.kk{
    background: #999999;
    width: 1000px;
    height: 500px;
    margin: 0 auto;
    font-size: 24px;
    text-align: center;
    line-height: 500px;
    color: white;
    display: none;
}



/*子分类下拉*/

.fenlei{
    /*height: 100px;*/
    margin: 0 auto;
    width: 200px;


    /*overflow: hidden;*/
    list-style:none;
    text-align: center;

}


/*.fenlei>li{*/
    /*width: 100%;*/
/*}*/

.fenlei span{
    width: 100px;
    height: 50px;
    line-height: 50px;
    /*text-align: center;*/
    font-size: 20px;
    border-bottom: 1px solid;
    display: inline-block;
    background-color: pink;
    cursor: pointer;


}

/*初始的时候要对子分类的的UL整个先隐藏*/

.fenlei ul{
    display: none;
}

.fenlei ul>li{
    font-size: 18px;
    color: black;
    width: 100%;
    height: 50px;
    line-height: 50px;
    list-style: none;

}




























